Chambers used a variety of different logos over the decades. There are a number of ways to date your stove, but one of the easiest ones is definitely the logo.
While Chambers started in 1912, I have never seen a clear picture of the logo used in those first 8 years. If you have an early Chambers stove, please send me a good, clear picture of the logo so I can include it below.
Also, all this information is the best I have been able to find and corroborate based on stoves I have seen in person. If you have corrections or updates, please let me know!
1912 - 1919
The original! And this is the best picture of one I've ever had. If you have one of these early stoves, please send me a picture of your logo plate.
1920 - 1922
Used on the 8000 and 9000 series stoves.
1923 - 1924
Used on 2000 series stoves. (note that this is much more blue than the previous, grayer logo.)
1925 - 1930
Used on 3000 and 4000 series stoves. (note the difference between the 3 and 4000 series was the 4000 had an Auto-Stat oven regulator while the 3000 had none)
1930 - 1935
Used on 1000, 3000 and 4000 series stoves.
1930 - 1935
Used on 1000 series stoves exclusively.
1935
Used on 5000 series stoves. (note, the 5000 series often had no logo at all, as those stoves were, like this example, sold through manufactured gas partners like Pyrofax)
1935 - 1938
Used on 7000 series, and the model A.
1939 – 1947
Model B and Imperial stoves (note, the Imperial was sold only from 1935 to 1939)
1947 – 1948
Model B and BZ
1951 – 1952
Model C
1951 – 1952
Model C
1951
Model C in pastel green only (note, they did this for yellow and blue stoves in 1951 as well. For red model Cs in 1951, a gray logo was used. I know have pictures of them somewhere…)
1953 – early 1956
Model C, In-A-Wall ovens and stovetops
